A whole number is added to 25 and the same number is subtracted from 25. The sum of the resulting numbers is

Question

Philoid · Accepted Answer

Let the whole number = a

First number = 25 + a

Second number = 25 - a

Sum of resulting numbers = 25 + a + (25 - a)

= 25 + a + 25 - a

= 25 + 25 + a - a

= 50 + 0

= 50